Water makes up 71% of the Earth’s surface, yet just 0.007% is easily accessible for drinking. The Earth’s growing population is putting a strain on our water supply and the struggle for clean water intensifies every year. Humans need water for drinking, producing food and clothing, building technology, moving our waste stream, and keeping the environment healthy. Unfortunately, humans are very inefficient water users. It is imperative that we learn to be more responsible with this resource before it runs out. In this section, you can find information about using rain barrels and a lesson about water conservation.